Mitsubishi Heavy Industries L2, Service Manual

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1 / 155 Service Manual Mitsubishi L-Series diesel engines
Version 08/2004 ENGLISH
FOREWORD
This service manual is written to familiarize you with the maintenance of your L-series Diesel Engine. If the engine is
carefully maintained, it will deliver a long productive life and efficient performance marked by power and economy.
Before attempting to inspect, disassemble, or repair the engine, read this manual carefully to learn more about the
engine and how to care for it properly. All descriptions, illustrations, specifications and serial numbers in this manual
are effective as of the date of printing of this manual.
The information contained in this manual applies to the engine model produced at the time of publication. It should
be noted that specifications and design may change due to improvements made thereafter.
What this manual covers
This service manual covers standard specifications for the L-series Mitsubishi Diesel Engine, and describes
• Specification
• Maintenance standard
• Adjustment
• Disassembly, inspection and repair
• Reassembly
In addition to the Summary of Manual Contents, a short summary of contents is found on the first page of each
group of the manual.
Operation and periodic maintenance are described in the Operation & Maintenance Manual , component parts and
ordering of service parts are described in the Parts Catalogue . Structure and function of the engine are described in
the various training manuals.
How to use this manual
1. Parts in illustrations are numbered to correspond with references to those numbers in the disassembly
sequence.
2. Items or conditions to be inspected during disassembly are enclosed in a box in the disassembled views:
3. Clogged oil hole
4. Maintenance standards for inspection and repair are described in text where they are relevant. For a quick
summary of maintenance standards, refer to group 9 of this manual.
5. Tightening torque under wet conditions is indicated as “(wet)” in text, drawings and tables. When so indicated as
(wet), apply engine oil to the threaded portion of the fastener. Unless indicated as such, the tightening torque is
to be assumed in the dry condition.
6. Measurements are based on the International System of Units (SI), and they are converted to the metric and
English system units in this manual based on the following conversion rates.
• Pressure 1 Mpa = 10.197 kgf/cm
2
• Torque N·m = 0.10197 kgf·m
• Force N = 0.10197 kgf
• Horsepower 1 kW = 1.341 HP = 1.3596 PS
Service Manual
Mitsubishi L-Series diesel engines
Version 08/2004
Copyright © 2004 MHI Equipment Europe B.V.